Which architectural innovation, inspired by Frank Lloyd Wright's Guggenheim Museum, revolutionized Apple's retail branding strategy and has since been patented as a distinctive store design element?

In the world of architectural retail design, certain innovations have dramatically transformed how brands present themselves and engage with customers. The concept of 'destination architecture' has become a powerful tool for retail branding, where the building itself becomes as much a part of the brand experience as the products within. Test your knowledge about one of the most influential examples of this phenomenon in modern retail architecture.

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The floating glass cube entrance
The circular glass staircase
The genius bar concept
The continuous aluminum ceiling